html,
body {
  width: 100%;
  height: 100%;
  background-color: #efefef;
}
*{
  padding:0;
  margin:0;
}
#nav{
  height: 60px;
  background-color: #91e4dc;
  width: 100%;
  text-align: right;
}
#nav ul{
  padding-right:50px;
}
#nav ul>li{
  width: 50px;
  height: 50px;
  line-height: 60px;
  display: inline-block;
  list-style: none; 
}
#nav ul>li a{
  color:#333;
}
.wrapper {
  background-color: #fff;
  margin: 3% auto 0;
  text-align: center;
  width: 500px;
  height: 400px;
}
.wrapper>h1{
  padding-top:40px;
}
.form-list {
  padding-top: 30px;
}

.form-item > span {
  display: inline-block;
  width: 80px;
  text-align: right;
  font-size: 14px;
  color: #333;
  margin: 20px auto 0;
}

.form-item > input {
  font-size: 14px;
  outline: none;
  padding: 5px;
}

.btn > button {
  margin: 20px;
}
